U.S. national security adviser Jake Sullivan met with Andriy Yermak, the head of Ukraine's presidential office, in Istanbul on Sunday and pledged Washington's steadfast support for Ukraine's sovereignty and territorial integrity, the White House said.
The two discussed the situation at Ukraine's Zaporizhzhya nuclear power plant and Ukraine's continued work with the United Nations to export food to the world, Adrienne Watson, spokesperson for the White House's National Security Council, said in a statement.
Yermak spoke of the meeting on Telegram, where he said he valued the military support from the United States and said the two sides discussed further security assistance.
Yermak said he noted "the Kremlin's decision to recognise the referendums carried out in the temporarily occupied regions requires an immediate and appropriate reaction from the world community."
